earthquakes

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Across
  1. 2. - The point on the Earth's surface directly above the focus.
  2. 4. - An instrument used to detect and record earthquake vibrations.
  3. 8. - A scale used to measure the magnitude (strength) of an earthquake.
  4. 9. - The point inside the Earth where an earthquake begins.
  5. 10. - A sudden shaking of the Earth's crust caused by the movement of tectonic plates.
Down
  1. 1. - A series of large sea waves caused by an underwater earthquake or volcanic eruption.
  2. 3. - The place where two tectonic plates meet.
  3. 5. - A scale used to measure the effects and damage caused by an earthquake.
  4. 6. - A smaller earthquake that occurs after the main earthquake.
  5. 7. - A large section of the Earth's crust that moves slowly over time.